ref: adda8658b4dcc5aa6b0ad7be0ba7b8ef3707112c
dir: /lib/c/src/isalpha.c/
/* See LICENSE file for copyright and license details. */
#define __USE_MACROS
#include <ctype.h>
#undef isalpha
int
isalpha(int c)
{
return __ctype[(unsigned char) c] & (_U|_L);
}